What are these?

Dieter

Seaman
Joined
Mar 20, 2011
Messages
58
I took my out drive off to check my gimbal and bearings, gimbal bearing is out, but the other thing is that I found two small metal pieces in my exhaust, what are they ? They look like flaps of some kind, will try to post pics thanks
 

stonyloam

Vice Admiral
Joined
Mar 13, 2009
Messages
5,827
Re: What are these?

IThey look like flaps of some kind, will try to post pics thanks

Those are most likely what is left of your exhaust shutters. Basically they keep water from entering your engine through the exhaust. It would be wise to replace them. Not too bad of a job. What is the year and engine?
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
70,559
Re: What are these?

Ayuh,... Odds are, it's been run with no water flow, which burns up the shutters, which you found the pieces of...
They're Supposed to be in the y-pipe, or down-pipe, depending on what motor ya got...
 

Dieter

Seaman
Joined
Mar 20, 2011
Messages
58
Re: What are these?

4.3 mercruiser 2002 four winns horizon 180 alpha one
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: What are these?

Bet they look like pieces of item #7 in the picture. Those are the shutters.

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